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Mathematics 18 Online
OpenStudy (anonymous):

If the point P(−4/5,y) is on the unit circle in quadrant II, then y=

OpenStudy (studygurl14):

then y has to be a positive number

OpenStudy (freckles):

Do you know the equation for the unit circle? You will need to use that here.

OpenStudy (freckles):

and the thing that @StudyGurl14 said about y

OpenStudy (anonymous):

i do not know the equation for the unit circle?

OpenStudy (freckles):

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